scholarly journals Reliability planning of active distribution systems incorporating regulator requirements and network-reliability equivalents

2016 ◽  
Vol 10 (1) ◽  
pp. 93-106 ◽  
Author(s):  
Ignacio Hernando-Gil ◽  
Irinel-Sorin Ilie ◽  
Sasa Z. Djokic
Keyword(s):  
Distribution Systems ◽  
Network Reliability ◽  
Reliability Planning

scholarly journals Factors Affecting the Design and Economic Operation of Distribution Networks and Its Investigation in the 0.4 KV Distribution Network of Ghazni City

2021 ◽  
Vol 3 (27) ◽  
pp. 101-115
Author(s):  
Massoud Danishmal ◽  
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Network Reliability ◽  
Distribution Network ◽  
Distribution Networks ◽  
Electricity Demand ◽  
Power Distribution Systems ◽  
Factors Affecting ◽  
Economic Operation ◽  
Selection Of

The design of power distribution systems should be such that it can technically respond to the increase in electricity demand properly and economically, optimally designed and high network reliability. In order to respond to the increase in electricity demand, load forecasting must be done so that in addition to providing the electricity needed by customers, expansion of power generation centers, expansion of substations, expansion of transformer stations and selection of their appropriate location can be done optimally. In this article, we first examine the definitions and factors that are technically and economically effective in the economic design of energy distribution systems. And in the next stage, we will see whether these above-mentioned effective factors are considered in the 0.4 kV distribution network of Ghazni city or not.

scholarly journals Reliability Assessment of Distribution Networks with Optimal Coordination of Distributed Generation, Energy Storage and Demand Management

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3202
Author(s):  
Alberto Escalera ◽  
Edgardo D. Castronuovo ◽  
Milan Prodanović ◽  
Javier Roldán-Pérez
Keyword(s):  
Energy Storage ◽  
Distribution Systems ◽  
Network Reliability ◽  
Demand Management ◽  
Reliability Assessment ◽  
Distribution Networks ◽  
Reliability Indices ◽  
Optimal Coordination ◽  
Management Techniques ◽  
The Impact

Modern power distribution networks assume the connection of Distributed Generators (DGs) and energy storage systems as well as the application of advanced demand management techniques. After a network fault these technologies and techniques can contribute individually to the supply restoration of the interrupted areas and help improve the network reliability. However, the optimal coordination of control actions between these resources will lead to their most efficient use, maximizing the network reliability improvement. Until now, the effect of such networks with optimal coordination has not been considered in reliability studies. In this paper, DGs, energy storage and demand management techniques are jointly modelled and evaluated for reliability assessment. A novel methodology is proposed for the calculation of the reliability indices. It evaluates the optimal coordination of energy storage and demand management in order to reduce the energy-not-supplied during outages. The formulation proposed for the calculation of the reliability indices (including the modelling of optimal coordination) is described in detail. The methodology is applied to two distribution systems combining DGs, energy storage and demand management. Results demonstrate the capability of the proposed method to assess the reliability of such type of networks and emphasise the impact of the optimal coordination on reliability.

A survey of models and algorithms for emergency response logistics in electric distribution systems. Part I: Reliability planning with fault considerations

2013 ◽  
Vol 40 (7) ◽  
pp. 1895-1906 ◽  
Author(s):  
Nathalie Perrier ◽  
Bruno Agard ◽  
Pierre Baptiste ◽  
Jean-Marc Frayret ◽  
André Langevin ◽  
...  
Keyword(s):  
Emergency Response ◽  
Distribution Systems ◽  
Electric Distribution ◽  
Reliability Planning

scholarly journals Comparative analysis of different probability distributions of random parameters in the assessment of water distribution system reliability

2013 ◽  
Vol 16 (2) ◽  
pp. 272-287 ◽  
Author(s):  
Giovanna Darvini
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Water Distribution ◽  
Network Reliability ◽  
Probability Distributions ◽  
Probabilistic Approach ◽  
Temporal Variations ◽  
Random Parameters ◽  
Statistical Parameters ◽  
The Impact

During recent years, several methods based on the probabilistic approach have been proposed for the analysis of the performance of water distribution systems (WDSs). Uncertain elements are described by probabilistic laws chosen and parameterised on the basis of the network characteristics. However, the choice of the most suitable probabilistic distribution and of the statistical parameters can be difficult because of the lack of information about the WDSs. Among the stochastic parameters that affect the network performance, a fundamental role is played by the times to failure and repair of the system components. The impact of the chosen probability distributions of these fundamental variables on the evaluation of water distribution network reliability is analysed. The study is performed by using a technique capable of considering the mechanical failure of the network components, the spatial and temporal variations of the water demand and the uncertain distribution of the pipe roughness. This analysis allows quantification of the effect of any inaccuracy that may occur in the probabilistic characterisation of the random parameters.

Detection of Frauds and Other Non-technical Losses in Power Utilities using Smart Meters: A Review

2016 ◽  
Vol 17 (3) ◽  
pp. 217-234 ◽  
Author(s):  
Tanveer Ahmad ◽  
Qadeer Ul Hasan
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Low Voltage ◽  
Network Reliability ◽  
Linear Regression Analysis ◽  
Interval Data ◽  
Electrical Power System ◽  
Smart Meters ◽  
Power Distribution System

Abstract Analysis of losses in power distribution system and techniques to mitigate these are two active areas of research especially in energy scarce countries like Pakistan to increase the availability of power without installing new generation. Since total energy losses account for both technical losses (TL) as well as non-technical losses (NTLs). Utility companies in developing countries are incurring of major financial losses due to non-technical losses. NTLs lead to a series of additional losses, such as damage to the network (infrastructure and the reduction of network reliability) etc. The purpose of this paper is to perform an introductory investigation of non-technical losses in power distribution systems. Additionally, analysis of NTLs using consumer energy consumption data with the help of Linear Regression Analysis has been carried out. This data focuses on the Low Voltage (LV) distribution network, which includes: residential, commercial, agricultural and industrial consumers by using the monthly kWh interval data acquired over a period (one month) of time using smart meters. In this research different prevention techniques are also discussed to prevent illegal use of electricity in the distribution of electrical power system.

scholarly journals Research on Distribution Network Reliability Investment Estimation Method Based on Sequence Linearization Correlation Analysis

2021 ◽  
Author(s):  
Huazhen Cao ◽  
Chong Gao ◽  
Yaxiong Wu ◽  
Hao Li ◽  
Zijun Wang ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Power Supply ◽  
Reliability Index ◽  
Network Reliability ◽  
Distribution Network ◽  
Estimation Method ◽  
Actual Distribution ◽  
Engineering Construction ◽  
Total Investment ◽  
Reliability Planning

This paper presents an estimation method of distribution network reliability planning Investment Based on sequence linearization correlation analysis. Firstly, the planning business index closely related to reliability are selected, and the control objectives of reliability index are decomposed into the promotion objectives of each planning business index through sequence linearization correlation analysis. Then, the typical engineering construction scenarios corresponding to each planning business index are constructed, and the investment required to achieve the corresponding promotion objectives of business index is estimated according to the typical scenarios, Finally, the total investment of reliability planning is obtained. The example shows that the method can be applied to the actual distribution network with complex grid conditions and various planning schemes, and can provide powerful guidance for power supply enterprises to improve the efficiency of capital use

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